Two warships were moving toward each other in the same straight line at 50 km/h and 89 km/h respectively. One of the ships fired a shell toward the other when the distance to it was 4.2 km. Given that the shell's horizontal velocity relative to the first ship was 211 km/h, how long did it take for the shell to hit the second ship?

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.

Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2

If the area of a square has increased by a factor of 16, by how much has each side increased?